MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains multiple heuristics indicating malicious redirection and link farming, including a critical finding for a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a visible URL pointing to a redirector, suggesting a phishing or malware distribution lure. The presence of numerous embedded links, many pointing to Shopify domains, further supports the SEO link farm tactic.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.ru/pify?keyword=chemistry+lab+report+book In PDF document text
- http://files.huntinghillskennel.com/uploads/1/3/2/6/132695734/gidurefi.pdfIn PDF document text
- http://files.learningessentialsnc.com/uploads/1/3/2/7/132740241/4934603.pdfIn PDF document text
- http://files.chesapeakecare.org/uploads/1/3/1/3/131379246/8dd7d30ec4e9.pdfIn PDF document text
- http://dejagigex.ims-spi.com/uploads/1/3/2/7/132740494/7871031.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0450/5042/9598/files/check_if_string_is_empty.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7999/9383/files/galobog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5799/5160/files/bigadivixaxuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3264/1689/files/xazavuvisezizoromutonadis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/3577/6408/files/10606409332.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7365/8273/files/sample_articles_of_incorporation_ontario.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1559/4393/files/jufuzame.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8937/9993/files/alhagi_maurorum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4715/6903/files/razapakudelonukibuzaxor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6174/6595/files/febinefifupamu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5179/5107/files/70351180593.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5247/4280/files/12029058492.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9078/7996/files/tax_audit_report_password.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6583/4649/files/c_to_f_conversion.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bf25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF25 | 5068 bytes |
SHA-256: a70e42888ecc1aad2250c1e927a25a9ee4e35cc6d9c541bf0166bce82b6110c3 |
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font_01_sfnt_off0000d05d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD05D | 10420 bytes |
SHA-256: e37c13d0cf9d72b8c7dbe648dd900539e9df880fa180278e3b3246b40cda8ea2 |
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font_02_sfnt_off0000f3f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3F4 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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